This app is suspected of malicious behavior, though these accusations are in dispute. The software allegedly connects to websites of financial and government institutions, and uses the PC for attacks against them. It disables SSL certificate checks and allows man-in-the-middle attacks to steal authentication credentials. It hooks into the browser and uses suspicious compression to hide parts of the program.
UltraSurf is a free software which enables users inside countries with heavy Internet censorship to visit any public web sites in the world safely and freely. Users in countries without internet censorship also use it to protect their internet privacy and security.